A recent type of e-mail virus, develop to erase all kinds of security software installed on a system which has come up on the web.

The security software manufacturer McAfee has claimed that the virus is spreading its reach all over via e-mails on the address book of an infected user.

The e-mail which was entitled as 'Here you have', comes with a harmful URL which asks to download link to a PDF file, but the link takes the users to an executable page which puts the virus on the Windows Directory as 'CSRSS. EXE'.

The virus spreads to everyone else's emails on the address book of the infected user following which it erases the security software installed on the computer.

McAfee has stated that the virus can develop in mapped drives, remote machines, and removable media. Users are recommended not to opt for any suspicious looking URL, even when it comes from a trustworthy source and at the same time users need to constantly update their anti-virus software.

Anti-virus manufacturers such as McAfee and Norton, have released their updated their virus definitions to combat this virus.